Learning how to parse strings and use structs in C -

i'm trying mess around structs , pointers in c. want accomplish user enter date in format dd-mm-yyyy in main(), parse string formatted_date. i've read few suggestions on how don't understand how apply it. appreciated. thanks!

#ifndef date_h_ #define date_h_  // define structure date. typedef struct {     int tm_mday;     int tm_month;      int tm_year; } date;  // parses string 'formatted_date' representing date // in format dd-mm-yyyy, dd.mm.yyyy or dd/mm/yyyy // structure date 'parsed_date'. void parse_formatted_date(char * formatted_date, date * parsed_date) {  } 

you use sscanf() parse formated date string this:

int parse_formatted_date(const char *formatted_date, date *parsed_date) {     const int ret = sscanf(formatted_date, "%d-%d-%d",             &parsed_date->tm_mday,             &parsed_date->tm_month,             &parsed_date->tm_year);     return ret == 3; } 

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here full test program:

#include <stdio.h> #include <stdlib.h>  typedef struct {     int tm_mday;     int tm_month;      int tm_year; } date;  int parse_formatted_date(const char *formatted_date, date *parsed_date) {     const int ret = sscanf(formatted_date, "%d-%d-%d",             &parsed_date->tm_mday,             &parsed_date->tm_month,             &parsed_date->tm_year);     return ret == 3; }  int main(int argc, char *argv[]) {     date d;      char *formatted_date = "06-03-2014";     if (parse_formatted_date(formatted_date, &d))         printf("date: %s\ndd = %d, mm = %d, yy = %d\n", formatted_date,                 d.tm_mday, d.tm_month, d.tm_year);     exit(exit_success); }